BOLT ELEMENTS AND METHOD FOR PRODUCING BOLT ELEMENTS
The invention relates to a method for producing a tubular bolt element (114), in particular of a rock bolt, that is made of a metal material and provided with an outside profile and/or structure, comprising the following steps: a strip (...

WO/2013/182455A1

SCREW AND METHOD FOR THE PRODUCTION THEREOF
The invention relates to a screw the front portion of the cylindrical shank of which has a screw thread that is interrupted. The interruption of the thread extends over not more than three turns and over an angle at circumference of appr...

WO/2013/177140A1

SPLINE ROLLING RACK AND METHOD
A spline rolling rack assembly for cold-forming external surface configurations upon a metal workpiece is provided, having a durable carriage of the type secured upon a reciprocating slide assembly, a perishable rack insert that is remov...

SPIRAL PIPE PROCESSING APPARATUS
The present invention relates to a spiral pipe processing apparatus and, more particularly, to a spiral pipe processing apparatus for processing a spiral for a pipe within a predetermined gap, which: batch automates an input unit, a proc...

WO/2013/113302A1

METHOD FOR THE MECHANICAL EDGE ZONE HARDENING OF COMPONENTS
The invention relates to a method for mechanical edge zone hardening within an edge zone of a component (11) by means of at least one rolling tool which induces residual stresses in the near-surface areas of the component (11) using a de...

WO/2013/103200A1

APPARATUS FOR FORMING GEAR PART
An apparatus for forming a gear part according to the present invention comprises: a main body frame; a material installation member movably installed in the main body frame, and having a material for forming a gear part provided therein...

WO/2013/088993A1

GEAR ROLLING METHOD USING CIRCULAR DIES
The objective of the present invention is to provide a gear rolling method that uses circular dies with which teeth of an appropriate shape can be obtained and with which movement does not occur during processing. A work piece having a c...

WO/2013/087299A1

PLANET FOR A PLANETARY ROLLING-CONTACT SCREW
The invention relates to a planet (11) for a planetary rolling-contact screw, along the planetary axis of which a central portion (12) having a larger diameter and, axially on both sides of the central portion (12), in each case one end ...

DRILL AND PRODUCTION METHOD FOR A DRILL
The invention relates to a drill (1) having a shaft (4) along an axis (2) between a drill head (3) and an insertion end (5). The shaft (4) is provided with at least two first grooves (34) extending along the axis (2) and at least one sec...

METHOD FOR PRODUCING A COMPOSITE ROLLING BEARING
The invention relates to a method for producing a composite rolling bearing (1) having a bearing flange (3) and at least one rolling bearing (4, 5) held on the bearing flange (3) by means of an inner ring (6, 7). In order to be able to f...

WO/2013/018624A1

LUBRICATING OIL FOR ROLLING AND ROLLING METHOD
Provided are lubricating oil for rolling, said lubricating oil being characterized by comprising a mineral oil and/or a synthetic oil as the main component and having a friction coefficient of 0.2 or greater, and a rolling method using t...

WO/2013/013659A1

HARD-ROLLING ROLLER
The invention relates to a hard-rolling roller for a hard-rolling tool having a toroidal main body for hard rolling radii or recesses which bound the bearing journals on crankshafts on both sides, and two at least approximately frustocon...

WO/2013/010961A1

ROLL FOR A RING ROLLING MILL
The invention relates to a roll for a ring rolling mill, characterized in that the roll (3, 4) has a main roll body (5) and a roll cap (6) placed on the main roll body (5).

SPINNING PROCESSING METHOD AND ROTOR SHAFT
In the present invention, processing is made easy even for cylindrical parts that have unbalanced sheet thickness and volume. In a spinning processing method for processing a rotor shaft (4), a material joining process, material separati...

THREAD ROLLING TAP
The present invention relates to a thread rolling tap for making female threads by plastically working the material, and more specifically, to a thread rolling tap comprising a threads part having threads along the outer surface, a chamf...

WO/2012/161507A2

THREAD ROLLING TAP
The present invention relates to a thread rolling tap for making female threads by plastically working the material, and more specifically, to a thread rolling tap comprising a threads part having threads along the outer surface, a chamf...

WO/2012/161507A3

THREAD ROLLING TAP
The present invention relates to a thread rolling tap for making female threads by plastically working the material, and more specifically, to a thread rolling tap comprising a threads part having threads along the outer surface, a chamf...

WO/2012/161506A2

THREAD ROLLING TAP
The present invention relates to a thread rolling tap for making female threads by plastically working the material, and more specifically, to a thread rolling tap comprising a threads part having threads along the outer surface, a chamf...

ANCHOR BOLT AND PRODUCTION METHOD
An anchor bolt for an expansion anchor has an expansion body (7) which is arranged coaxially with respect to an axis (4), wherein a circumferential surface (20) of the expansion body (7) has ribs (30) and grooves (31) in an alternating m...

WO/2012/119166A1

PROCESS AND DEVICE FOR PRODUCING A METALLIC STRIP
In a process and a device for producing a metallic strip (2) having at least two strips (24, 24', 25, 26) of differing thickness running in the longitudinal direction of the strip (2) with the aid of rollers (10, 16), between which the s...

WO/2012/092920A1

METHOD FOR THE ROLLER-STRAIGHTENING OF CRANKSHAFTS
The invention relates to a method for the roller-straightening of crankshafts (8, 8') with the aid of fixed rolling tools (1 to 7), in particular fixed rolling rollers (18, 19), which, while the crankshaft (8, 8') is being turned about i...

METHOD FOR PRODUCING A SCREW ANCHOR AND SCREW ANCHOR
The invention relates to a method for producing a screw anchor (10), wherein a blank made of a steel having a carbon content of 0.35% to 0.42% is provided, in particular made of AISI 1038, wherein a thread (16) is rolled at the tip. The ...

HOLLOW COIL SPRING AND METHOD FOR MANUFACTURING SAME
Provided are a hollow coil spring and a method for manufacturing the hollow coil spring, whereby inner surface corrosion can be prevented, and product appearance can be improved. In an end sealing step, the core material of an end (Wa) o...

WO/2012/073786A9

HOLLOW COIL SPRING AND METHOD FOR MANUFACTURING SAME
Provided are a hollow coil spring and a method for manufacturing the hollow coil spring, whereby inner surface corrosion can be prevented, and product appearance can be improved. In an end sealing step, the core material of an end (Wa) o...

SINTERED GEARWHEEL
What is described is a sintered gearwheel having teeth (1) which, in the flank and foot regions (2, 3), have a compacted surface layer (7, 8, 9) which is continuous in the transition portion (4) between the flank and foot regions (2, 3) ...

WO/2012/011058A1

TOOL-HOLDING DEVICE
Tool-holding device suitable for being coupled to a mandrel of a machine tool or a mandrel fitted on a robot, comprising: - one or more tool-holder carriages (10); such carriages are positioned radially in relation to the mandrel axis (X...

WO/2012/007231A1

PROCESS FOR PRODUCING A SEMIFINISHED PRODUCT
A process for producing an elongate semifinished product (30) having at least two differently profiled portions (37; 38) of predefined lengths uses the following steps. A continuously fed wire (31) is rolled by means of a rotating roller...

WO/2012/009439A1

THREAD FORMING DIE AND METHOD
A die for roll forming threads on a cylindrical blank comprises, a generally planar die body having a longitudinally elongate working face of sufficient length for the blank to make multiple revolutions across said face. A plurality of s...

MACHINE FOR DEEP-ROLLING AXLES
The invention relates to a machine, in particular a machine tool, for deep-rolling axles (5) for wheelsets of railway vehicles, having two lathe centres (16) for receiving an axle (5) at each of their two ends, having a device for drivin...

WO/2012/002866A1

A HOLLOW GEAR RING AND METHOD FOR ITS MANUFACTURING
A welded hollow gear ring (160, 260, 360, 460, 560) with an outer (140, 240, 340) and an inner (155, 255, 355) periphery, which exhibits a gear structure (131-138, 231-238, 331-338, 331 '-338') on at least one periphery, as well as exhib...

WO/2011/159267A1

RAILWAY VEHICLE WHEELSET
The invention relates to mechanical engineering and, more specifically, to the production of wheelsets for freight and passenger cars, unpowered cars, electric trains and diesel trains used on main-line railways. The wheelset comprises a...

WO/2011/152846A1

TWO-PIECE GUIDE PIN AND METHOD
A two-piece guide pin for metal forming dies includes a guide pin body formed from a cut length of an elongate, solid bar of stock having a cylindrical shape and a hard and smooth finished exterior surface with an outside diameter select...